What does PTR stand for?
PTR stands for "Peak-to-Trough Ratio"
How to abbreviate "Peak-to-Trough Ratio"?
"Peak-to-Trough Ratio" can be abbreviated as PTR
What is the meaning of PTR abbreviation?
The meaning of PTR abbreviation is "Peak-to-Trough Ratio"
What does PTR mean?
PTR as abbreviation means "Peak-to-Trough Ratio"
